27 static inline int throttle_flow(struct __sk_buff *skb)  in throttle_flow()  argument
31 	uint64_t delay_ns = ((uint64_t)skb->len) * NS_PER_SEC /  in throttle_flow()
39 	tstamp = skb->tstamp;  in throttle_flow()
56 		bpf_skb_ecn_set_ce(skb);  in throttle_flow()
60 	skb->tstamp = next_tstamp;  in throttle_flow()
65 static inline int handle_tcp(struct __sk_buff *skb, struct tcphdr *tcp)  in handle_tcp()  argument
67 	void *data_end = (void *)(long)skb->data_end;  in handle_tcp()
74 		return throttle_flow(skb);  in handle_tcp()
79 static inline int handle_ipv4(struct __sk_buff *skb)  in handle_ipv4()  argument
81 	void *data_end = (void *)(long)skb->data_end;  in handle_ipv4()
82 	void *data = (void *)(long)skb->data;  in handle_ipv4()
97 		return handle_tcp(skb, (struct tcphdr *)(((void *)iph) + ihl));  in handle_ipv4()
102 SEC("cls_test") int tc_prog(struct __sk_buff *skb)  in tc_prog()  argument
104 	if (skb->protocol == bpf_htons(ETH_P_IP))  in tc_prog()
105 		return handle_ipv4(skb);  in tc_prog()